Missouri registration and tax info

Gusto partners with CorpNet to help you register your business in new states. 

How it works

Once a work address has been added in a new state and a new employee has been hired and assigned a work address in that state, you can get registration assistance in Gusto.

Pricing varies by state—get started below and during step 4, you'll review the price, process, and estimated timeline to completion.

Here’s a snapshot of the process:

1. We’ll collect some basic business information from you.
2. Gusto and CorpNet will check the information for accuracy.
3. Your registration application(s) are usually submitted within 3-5 business days.
4. Check the mail for registration info—the state will typically send your tax account numbers and rates to you directly.

CorpNet can walk you through entering any info that they themselves do not enter in Gusto on your behalf.

Get started with state tax registration

1. Sign in to Gusto as an admin.
2. Click the Taxes & compliance section and select Tax setup.
3. Under “[State name] Tax Setup”, click Have us register for you.
   • The state you want to register in will only appear in this location once a work address has been added in a new state and an employee has been assigned a work address in that state.
4. Review the price, process, and estimated timeline to completion.
   • We will not charge you the registration service fee until you send us your order.
5. Click Continue.
6. Answer a couple eligibility questions.
   • Note: Gusto can only register for you if you don't yet have a state account already.
7. Click Save & continue.
8. Enter some company information.
   • We’ll pre-populate the information we already have.
9. Click Save & continue.
10. Tell us about your responsible party–this is the person who is to be held accountable for the company’s good standing and a point of contact within the organization for tax purposes.
11. Click Save & continue.
12. Enter some state-specific operational information.
13. Click Save and continue.
14. Review all information thoroughly–if any information is incorrect it may delay the process.
    • Heads up: state and local agencies may charge additional fees and increase the estimated turnaround time shown. CorpNet will let you know if that happens.
15. Check the box to acknowledge all info is accurate and you agree to the Terms of Service.
16. Click Send registration order.

After you send your order, we’ll email you with status updates and add your order total to your next monthly invoice.

Checking the status of your order

When your order is complete you’ll receive emails from both Gusto and CorpNet. They’ll detail the next steps which include:

• Reviewing registration details
• Any other state-specific instructions

Before your order is completed, you can use the link in the state registration confirmation email from Gusto to check the status of your order. 

You can also head to the Taxes & compliance and select Tax setup, scroll to the state tax setup section and click the link to Check the status of your registration.

Changing your order

To update your order, contact CorpNet at [email protected] or 1(888) 449-2638. They’re open Monday-Friday from 7am-5pm PT.

FAQs

Q: Can I run payroll for my employees before my registration is complete?

A: Not in most cases—you typically need to have a withholding account number and required tax rate(s) in Gusto before you can run payroll. 

If you’re registering in a state where there is no income tax withheld, you can use the state-specific “new employer rate” in this article until you receive your company-assigned rate from the agency.

Q: Can I use Gusto to register in a new state if I don't have a Federal Employer Identification Number (FEIN) yet?

A: No–you must have a FEIN entered in Gusto to order a state tax registration.

Q: Where can I see all my tax information?

A: You can see all tax details in the following locations: 

• Gusto–head to the Taxes & compliance and select Tax setup, and scroll to the applicable state tax setup.
• CorpNet–create a CorpNet account and login at any time to review information.
• State online account–once you’ve gained access to your agency accounts, your tax details will also be available there.

Gusto’s state tax registration service does not contain tax, legal, financial, or HR advice. Since rules and regulations change over time and can vary by location, consult a lawyer, HR expert, or accountant for specific guidance.

Income tax withholding and unemployment tax 

New employers in Missouri can register for both of these taxes together by visiting the Missouri Online Business Registration website. Click Start registration here at the bottom of the page to begin the process, and make sure to register for withholding tax and unemployment tax. 

• Most companies are liable for state unemployment if they pay more than $1,500 of wages in a calendar quarter or have an employee for some part of a day in each of 20 different weeks. 

Here's what to expect:

• You should receive your account numbers in 1-2 weeks.
  • Keep this time frame in mind when planning your first Missouri payroll—you'll need the tax account numbers entered in Gusto in order to process payroll for Missouri employees.
• Your Department of Revenue withholding tax identification number will be 8 digits.
• You will also receive your assigned withholding tax deposit schedule.
• Your Department of Labor and Industrial Relations employer account number will be 10 digits.

Both account numbers and your withholding tax deposit schedule need to be entered in Gusto by clicking the Taxes & compliance section and selecting Tax setup.

Unemployment insurance rate

The Unemployment insurance tax rate can be found on the most recent Notice of Liability you received from the Department of Labor and Industrial Relations, or by calling the agency at (573) 751-3215. Click here to view state-by-state new employer rate ranges and wage bases.

• Keep in mind: there are special cases for those in the mining, construction, and non-profit industries.

Kansas City Account ID

Employees who live or work in Kansas City are subject to a tax from the City of Kansas City, Finance Department. 

You can find your Kansas City Account ID by logging into your Quick Tax Account (click on 'Individual or Business') or by calling (816) 513-1120. 

If you don't have a number yet, you can register the business with the City of Kansas City, Missouri - Revenue Division online or call (816) 513-1135.

Kansas City Letter ID

In order for Gusto to file and pay your City of Kansas City Earnings Tax on your behalf, we need to know your Letter ID. You can find it on the top-right corner of letters that you have received from the City of Kansas City, Finance Department within the last year. Your Letter ID can also be found by logging into your Quick Tax Account and clicking the "Letter" tab.

If you haven't registered for a Quick Tax Account, you can register the business with the City of Kansas City, Missouri - Revenue Division online.

For businesses without activity in Kansas City but who employ city residents: there is no legal requirement to withhold on Kansas City residents if there is no business activity taking place in Kansas City. The business may set up a withholding account as a courtesy—if you do, you'll need to contact our team from the Help section of your Gusto account to set up courtesy withholding in Gusto.

St. Louis City Tax 

For businesses with activity in St. Louis: in order to pay your St. Louis City Tax and Payroll Expense Tax you need to register with the St. Louis Collector of Revenue. You can do this by completing Form E-9 and faxing it to the St. Louis Collector of Revenue at (314) 622-4847, attention "Registration". If you have any questions, you should call the agency at (314) 622-4111.  

For businesses without activity in St. Louis, but who employ city residents: there is no legal requirement to withhold on St. Louis residents if there is no business activity taking place in St. Louis. The business may set up a withholding account as a courtesy by filing form E-9 and checking the "Withholding for City Resident Only" box—if you do, you'll need to contact our team from the Help section of your Gusto account to set up courtesy withholding in Gusto.

If the business chooses not to offer courtesy withholding to their resident employees, there is a legal requirement to report to the city all city residents. The business will need to be set up as an agency for reporting purposes only. Contact the St. Louis office at (314) 622-4805.

If you need to change your Missouri account number in Gusto, contact customer support through the Help section of your account for further assistance. 

Income tax withholding

If you've run payroll in the past in MO, you can find your 8-digit Missouri Tax ID Number on the Employer's Return of Income Taxes Withheld (Form MO-941) received from the MO Department of Revenue.

• If you're unsure of your Missouri tax ID number call the agency at (573) 751-3505.
• If you haven't registered yet, click here for registration instructions.

Enter your tax deposit schedule in Gusto

Missouri employers receive their tax deposit schedule after they register with the MO Department of Revenue—if you registered over a year ago, or are uncertain what your tax deposit schedule is, call the Missouri Department of Revenue at (573) 751-3505.

To enter your MO tax ID number and current withholding tax deposit schedule in Gusto:

1. Head to the Taxes & compliance section and select Tax setup.
2. Scroll to the applicable state headline and click Manage taxes.
3. Click edit next to "Tax Identification Number" and "Tax Deposit Schedule".
4. Enter your account number and deposit schedule.
   • Make sure your account number is accurate, once saved, you'll have to contact us if this needs to be fixed (to address potential tax implications).

State unemployment tax

If you've run payroll in the past in MO, you can find your Unemployment Account Number on the Notice of Liability sent to you by the Department of Labor and Industrial Relations, or on your Quarterly Contribution and Wage Report (Form MODES-4). The account number contains 10 digits and is formatted as follows: 00-00000-0-00. 

Enter your 10-digit account number in the Company details section of your Gusto account. 

Unemployment insurance tax rate

Your Unemployment Insurance tax rate can be found on the most recent Notice of Liability you received from the Department of Labor and Industrial Relations. You can also get your account number and rate by calling the agency at (573) 751-3215.

Click here to view state-by-state UI rate ranges and wage bases (not company-specific).

Missouri city taxes

Kansas City Account ID

Employees who live or work in Kansas City are subject to a tax from the City of Kansas City, Finance Department. 

You can find your Kansas City Account ID by logging into your Quick Tax Account (click on 'Individual or Business') or by calling (816) 513-1120. 

If you don't have a number yet, you can register the business with the City of Kansas City, Missouri - Revenue Division online or call (816) 513-1135.

Kansas City Letter ID

In order for Gusto to file and pay your City of Kansas City Earnings Tax on your behalf, we need to know your Letter ID. You can find it on the top-right corner of letters that you have received from the City of Kansas City, Finance Department within the last year. Your Letter ID can also be found by logging into your Quick Tax Account and clicking the "Letter" tab.

If you haven't registered for a Quick Tax Account, you can register the business with the City of Kansas City, Missouri - Revenue Division online.

For businesses without activity in Kansas City but who employ city residents: there is no legal requirement to withhold on Kansas City residents if there is no business activity taking place in Kansas City. The business may set up a withholding account as a courtesy—if you do, you'll need to contact our team from the Help section of your Gusto account to set up courtesy withholding in Gusto.

St. Louis City Tax 

For businesses with activity in St. Louis: in order to pay your St. Louis City Tax and Payroll Expense Tax you need to register with the St. Louis Collector of Revenue. You can do this by completing Form E-9 and faxing it to the St. Louis Collector of Revenue at (314) 622-4847, attention “Registration”. If you have any questions, you should call the agency at (314) 622-4111.  

For businesses without activity in St. Louis, but who employ city residents: there is no legal requirement to withhold on St. Louis residents if there is no business activity taking place in St. Louis. The business may set up a withholding account as a courtesy by filing form E-9 and checking the "Withholding for City Resident Only" box—if you do, you'll need to contact our team from the Help section of your Gusto account to set up courtesy withholding in Gusto.

If the business chooses not to offer courtesy withholding to their resident employees, there is a legal requirement to report to the city all city residents. The business will need to be set up as an agency for reporting purposes only. Contact the St. Louis office at (314) 622-4805.

• Employer's Return of Income Taxes Withheld (MO-941)*
• Quarter-Monthly Withholding Tax Payments (MO-941P) electronic filing only*
• Transmittal of Wage and Tax Statements (MO-W3)
• Wage and Tax Statements (State W2)
• Quarterly Contribution and Wage Report (MODES-4-7)
• Quarterly Wage Report Continuation Sheet (MODES-10B)
• MO New Hire Report
• Various local returns

Asterisks info—only if applicable

Filings marked with an asterisk (*) are coupons, payment vouchers, or other forms that are filed electronically, and will not appear in your Tax documents tab.

Filings marked with a double-asterisk (**), are forms that will only be available for January 1st, 2020 and beyond.

Some states require that you enter specific information about Gusto to grant us Third Party Access (TPA) or register—TPA is also sometimes necessary in order for us to file and pay your taxes.

If at any time an agency needs information about your payroll agent, first reference the Register a company with the state dropdown above for any state-specific information or detail that may be required.

If there is no mention of TPA in that section, you can use the information below:

• Agent name: Tomer London

• Firm Name: ZenPayroll Inc (dba: Gusto)

• FEIN: 453942850

• Email: [email protected]

• Address: 525 20th Street San Francisco, CA 94107 

• Phone: (415) 935-0230

Reminder: if state-specific codes/IDs are requested and you can not match them to the information above, check the first dropdown of the article.